CN217984553U - Multi-point direct current access circuit of energy storage inverter - Google Patents
Multi-point direct current access circuit of energy storage inverter Download PDFInfo
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- CN217984553U CN217984553U CN202222205182.9U CN202222205182U CN217984553U CN 217984553 U CN217984553 U CN 217984553U CN 202222205182 U CN202222205182 U CN 202222205182U CN 217984553 U CN217984553 U CN 217984553U
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Abstract
The utility model belongs to the technical field of photovoltaic inverter, the utility model discloses in energy storage inverter's that proposes multiple spot direct current access circuit, including inverter circuit, photovoltaic unit, with photovoltaic unit connection's the unit and the communication unit that step up, wherein, photovoltaic unit is further including: a first photovoltaic module PV1, a second photovoltaic module PV2 and a third photovoltaic module PV3; wherein, inverter circuit further includes: the power supply module BATTERY, the DC-DC full bridge, the inverter INV and the two RELAYs RELAY; wherein, the boost unit further includes: a first BOOST circuit BOOST1, a second BOOST circuit BOOST2 and a third BOOST circuit BOOST3; through being provided with three photovoltaic module, when installing on the roof, also can independently insert photovoltaic system to curved surface department and independently generate electricity, thereby utilized the three face on roof to increase irradiant area of contact, not extravagant roof area, can improve the generating efficiency for the generated energy increases.
Description
Technical Field
The utility model belongs to the technical field of photovoltaic inverter, in particular to energy storage inverter's multiple spot direct current inserts circuit.
Background
With the wider application of photovoltaic, the technology of photovoltaic modules is more mature. Photovoltaic power generation is increasingly advantageous. In order to solve the problem of energy discontinuity of photovoltaic systems, the use of energy storage machines is becoming more and more widespread. With the improvement of the building artistry of the existing roof, the roof is not limited to two surfaces, and multiple curved surfaces are likely to appear, so that the application of the traditional two-way photovoltaic is more and more limited, and in order to solve the problem of the application of the photovoltaic power generation of the roof with multiple angles, a multipoint direct-current access machine is urgently needed to be developed, and the power generation capacity is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem, a multipoint direct current access circuit of energy storage inverter is proposed.
The technical scheme of the utility model is realized like this:
energy storage inverter's multiple spot direct current access circuit, including inverter circuit, photovoltaic unit, with the unit and the communication unit of stepping up that photovoltaic unit is connected, wherein, the photovoltaic unit further including: a first photovoltaic module PV1, a second photovoltaic module PV2 and a third photovoltaic module PV3; wherein, inverter circuit further includes: the power supply module BATTERY, the DC-DC full bridge, the inverter INV and the two RELAYs RELAY; wherein, the boost unit further includes: a first BOOST circuit BOOST1, a second BOOST circuit BOOST2 and a third BOOST circuit BOOST3; the output ends of the first photovoltaic circuit PV1, the second photovoltaic module PV2 and the third photovoltaic module PV3 are respectively connected with the input ends of the first BOOST circuit BOOST1, the second BOOST circuit BOOST2 and the third BOOST circuit BOOST3; the output ends of the first BOOST circuit BOOST1, the second BOOST circuit BOOST2 and the third BOOST circuit BOOST3 are connected with a BUS BUS, and one end of the BUS BUS is simultaneously connected with one end of the inverter INV and one end of the DC-DC full bridge; one end of the power supply unit BATTERY is connected with the DC-DC full bridge, one end of the DC-DC full bridge is connected with the inverter INV, the other end of the inverter INV is connected with one end of the first group of RELAYs RELAY, the other end of the first group of RELAYs RELAY is simultaneously connected with one end of the second group of RELAYs RELAY and the GRID module, and the other end of the second RELAY RELAY is connected with the LOAD module; the communication unit further comprises a DSP chip, a single chip microcomputer ARM1, a single chip microcomputer ARM2 and an SCI circuit, wherein two ends of the SC1 circuit are connected with one end of the DSP chip and one end of the single chip microcomputer ARM1, and two ends of the SC1 circuit are connected with one ends of the single chip microcomputer ARM1 and the single chip microcomputer ARM 2; the photovoltaic unit, the boosting unit and the inverter circuit are connected with a driving square wave PWM provided by the communication unit.
The BOOST circuit BOOST further comprises a power supply, an inductor L1, a switch S, a diode D3 and a capacitor C2, wherein the positive electrode of the power supply is connected with one end of the inductor L1, the other end of the inductor L1 is connected with one end of the switch S1 and one end of the diode D3 at the same time, one end of the switch S1 is connected with the negative electrode of the power supply and one end of the capacitor C2 at the same time, one end of the diode D3 is connected with the capacitor C2, and the capacitor C2 is grounded.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
the utility model discloses in, through being provided with three photovoltaic module of group, when installing on the roof, also can independently insert photovoltaic system to curved surface department and independently generate electricity, thereby the three face of having utilized the roof has increased irradiant area of contact, and the roof area of not wasting can improve the generating efficiency for the generated energy increases.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic diagram of the multi-point dc access circuit structure of the energy storage inverter of the present invention.
Fig. 2 is a schematic diagram of the boost circuit.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example (b):
referring to fig. 1, the multi-point dc access circuit of the energy storage inverter includes an inverter circuit, a photovoltaic unit, a boosting unit connected to the photovoltaic unit, and a communication unit, wherein the photovoltaic unit further includes: a first photovoltaic module PV1, a second photovoltaic module PV2 and a third photovoltaic module PV3;
wherein, inverter circuit further includes: the power supply comprises a power supply module BATTERY, a DC-DC full bridge, an inverter INV and two RELAYs RELAY;
wherein, the boost unit further includes: a first BOOST circuit BOOST1, a second BOOST circuit BOOST2 and a third BOOST circuit BOOST3;
the output ends of the first photovoltaic circuit PV1, the second photovoltaic module PV2 and the third photovoltaic module PV3 are respectively connected with the input ends of the first BOOST circuit BOOST1, the second BOOST circuit BOOST2 and the third BOOST circuit BOOST3;
the output ends of the first BOOST circuit BOOST1, the second BOOST circuit BOOST2 and the third BOOST circuit BOOST3 are connected with a BUS BUS, and one end of the BUS BUS is simultaneously connected with one end of the inverter INV and one end of the DC-DC full bridge;
one end of the power module BATTERY is connected with the DC-DC full bridge, one end of the DC-DC full bridge is connected with the inverter INV, the other end of the inverter INV is connected with one end of the first group of RELAYs RELAY, the other end of the first group of RELAYs RELAY is simultaneously connected with one end of the second group of RELAYs RELAY and the GRID module, and the other end of the second RELAY RELAY is connected with the LOAD module;
the communication unit further comprises a DSP chip, a single chip microcomputer ARM1, a single chip microcomputer ARM2 and an SCI circuit, wherein two ends of the SC1 circuit are connected with one end of the DSP chip and one end of the single chip microcomputer ARM1, and two ends of the SC1 circuit are connected with one ends of the single chip microcomputer ARM1 and the single chip microcomputer ARM 2;
the photovoltaic unit, the boosting unit and the inverter circuit are connected with a driving square wave PWM provided by the communication unit.
After power module BATTERY is stepped up and down via DC-DC full-bridge, the upset brings differential signal, get into each communication serial ports of communication module unit after the modulation, in order to be used for agreement network, and photovoltaic cell's photovoltaic voltage has BUS BUS to merge into the circuit after the booster unit steps up, with power module BATTERY voltage parallel circuit, including first photovoltaic circuit PV1 in the photovoltaic unit, second photovoltaic module PV2 and third photovoltaic module PV3, can correspond the three faces on roof, independently generate electricity separately, thereby photovoltaic power generation's effective area has been increased, can improve generating efficiency, make the generated energy increase.
Referring to fig. 2, the BOOST circuit BOOST further includes a power supply, an inductor L1, a switch S, a diode D3, and a capacitor C2, wherein an anode of the power supply is connected to one end of the inductor L1, another end of the inductor L1 is connected to one end of the switch S1 and one end of the diode D3, one end of the switch S1 is connected to a cathode of the power supply and one end of the capacitor C2, one end of the diode D3 is connected to the capacitor C2, and the capacitor C2 is grounded.
The switch S1 is closed, the voltage of the point A is 0, vi directly charges the inductor L1, and when the switch S1 is disconnected, the energy stored in the inductor L1 can discharge to a load through the diode D3; meanwhile, vi can discharge to the load through the diode, and the Vi and the load are superposed to realize boosting.
The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. Energy storage inverter's multiple spot direct current access circuit, its characterized in that, including inverter circuit, photovoltaic unit, with the unit and the communication unit that step up that photovoltaic unit is connected, wherein, the photovoltaic unit further including: a first photovoltaic module PV1, a second photovoltaic module PV2 and a third photovoltaic module PV3; wherein, inverter circuit further includes: the power supply comprises a power supply module BATTERY, a DC-DC full bridge, an inverter INV and two RELAYs RELAY; wherein, the boost unit further includes: a first BOOST circuit BOOST1, a second BOOST circuit BOOST2 and a third BOOST circuit BOOST3; the output ends of the first photovoltaic circuit PV1, the second photovoltaic module PV2 and the third photovoltaic module PV3 are respectively connected with the input ends of the first BOOST circuit BOOST1, the second BOOST circuit BOOST2 and the third BOOST circuit BOOST3; the output ends of the first BOOST circuit BOOST1, the second BOOST circuit BOOST2 and the third BOOST circuit BOOST3 are connected with a BUS, and one end of the BUS is simultaneously connected with one end of an inverter INV and one end of a DC-DC full bridge; one end of a power supply unit BATTERY is connected with a DC-DC full bridge, one end of the DC-DC full bridge is connected with an inverter INV, the other end of the inverter INV is connected with one end of a first group of RELAYs RELAY, the other end of the first group of RELAYs RELAY is simultaneously connected with one end of a second group of RELAYs RELAY and a GRID module, and the other end of the second RELAY RELAY is connected with a LOAD module; the communication unit further comprises a DSP chip, a single chip microcomputer ARM1, a single chip microcomputer ARM2 and an SCI circuit, wherein two ends of the SC1 circuit are connected with one end of the DSP chip and one end of the single chip microcomputer ARM1, and two ends of the SC1 circuit are connected with one ends of the single chip microcomputer ARM1 and the single chip microcomputer ARM 2; the photovoltaic unit, the boosting unit and the inverter circuit are connected with a driving square wave PWM (pulse width modulation) provided by the communication unit.
2. The multipoint direct current access circuit of the energy storage inverter according to claim 1, wherein the BOOST circuit BOOST further comprises a power supply, an inductor L1, a switch S, a diode D3 and a capacitor C2, the positive electrode of the power supply is connected to one end of the inductor L1, the other end of the inductor L1 is connected to one end of the switch S1 and one end of the diode D3, one end of the switch S1 is connected to the negative electrode of the power supply and one end of the capacitor C2, one end of the diode D3 is connected to the capacitor C2, and the capacitor C2 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222205182.9U CN217984553U (en) | 2022-08-22 | 2022-08-22 | Multi-point direct current access circuit of energy storage inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222205182.9U CN217984553U (en) | 2022-08-22 | 2022-08-22 | Multi-point direct current access circuit of energy storage inverter |
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| Publication Number | Publication Date |
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| CN217984553U true CN217984553U (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222205182.9U Active CN217984553U (en) | 2022-08-22 | 2022-08-22 | Multi-point direct current access circuit of energy storage inverter |
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| CN (1) | CN217984553U (en) |
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- 2022-08-22 CN CN202222205182.9U patent/CN217984553U/en active Active
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